function results=ConstructBoundaryNodeArray(ns)
    ns(1,1)=9;
    ns(2,1)=6;
    
    ns(1,2)=6;
    ns(2,2)=3;
    
    ns(1,3)=1;
    ns(2,3)=4;
    
    ns(1,4)=4;
    ns(2,4)=7;
    
    results=ns;
end